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Plum tree pest identification

 
Posts: 26
Location: South Louisiana, 9A
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My young Santa Rosa plum tree is being devoured. I can't find any adult or larval insects on the tree that seem like suspects. But this poop is all over the tree. Does anyone recognize it? I'm in south Louisiana. What ever it is, it doesn't bother my Chicksaw plum at all.
poop.jpeg
pest poo
pest poo
 
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Have you seen grasshoppers?

One year the grasshoppers were rather plentiful and like to spend time in our trees.  There was lots of poop.  we only saw them occasionally because they are, you know ... grass-hoppers.

What is in your picture looks like grasshopper poop to me.
 
Jake Esselstyn
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Thanks Anne. It's possible, but I rarely see hoppers in the yard. I suspect something nocturnal and larval. I have found a couple cocoons on the tree, but they don't seem very numerous relative to the extent of damage. In the mean time, I will keep a look out for hoppers.
cocoon.jpeg
[Thumbnail for cocoon.jpeg]
 
Anne Miller
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Those leaves in the new picture sure look like something had dinner.

I assume that brown thing on the left-hand side is a cocoon, that looks like it was made from parts of chewed leaves.

And the poop looking stuff could be eggs.

I don't have a clue though this is good for identifying different bugs:

https://www.uvm.edu/sites/default/files/Extension-Master-Gardener/BugBook.pdf

 
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